283 lines
9.5 KiB
Go
283 lines
9.5 KiB
Go
//
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// Copyright (c) 2019-2021 Red Hat, Inc.
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// This program and the accompanying materials are made
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// available under the terms of the Eclipse Public License 2.0
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// which is available at https://www.eclipse.org/legal/epl-2.0/
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//
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// SPDX-License-Identifier: EPL-2.0
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//
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// Contributors:
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// Red Hat, Inc. - initial API and implementation
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//
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package deploy
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import (
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"context"
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"fmt"
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"sort"
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"strings"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/selection"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"github.com/eclipse-che/che-operator/pkg/util"
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"github.com/google/go-cmp/cmp"
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"github.com/google/go-cmp/cmp/cmpopts"
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"github.com/sirupsen/logrus"
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appsv1 "k8s.io/api/apps/v1"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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)
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var DefaultDeploymentDiffOpts = cmp.Options{
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cmpopts.IgnoreFields(appsv1.Deployment{}, "TypeMeta", "ObjectMeta", "Status"),
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cmpopts.IgnoreFields(appsv1.DeploymentSpec{}, "Replicas", "RevisionHistoryLimit", "ProgressDeadlineSeconds"),
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cmpopts.IgnoreFields(appsv1.DeploymentStrategy{}, "RollingUpdate"),
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cmpopts.IgnoreFields(corev1.Container{}, "TerminationMessagePath", "TerminationMessagePolicy", "SecurityContext"),
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cmpopts.IgnoreFields(corev1.PodSpec{}, "DNSPolicy", "SchedulerName", "SecurityContext", "DeprecatedServiceAccount"),
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cmpopts.IgnoreFields(corev1.ConfigMapVolumeSource{}, "DefaultMode"),
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cmpopts.IgnoreFields(corev1.SecretVolumeSource{}, "DefaultMode"),
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cmpopts.IgnoreFields(corev1.VolumeSource{}, "EmptyDir"),
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cmp.Comparer(func(x, y resource.Quantity) bool {
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return x.Cmp(y) == 0
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}),
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}
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func SyncDeploymentSpecToCluster(
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deployContext *DeployContext,
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deploymentSpec *appsv1.Deployment,
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deploymentDiffOpts cmp.Options) (bool, error) {
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if err := MountSecrets(deploymentSpec, deployContext); err != nil {
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return false, err
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}
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if err := MountConfigMaps(deploymentSpec, deployContext); err != nil {
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return false, err
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}
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done, err := Sync(deployContext, deploymentSpec, deploymentDiffOpts)
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if err != nil || !done {
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return false, err
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} else if !done {
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return util.IsTestMode(), nil
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}
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// always return true for tests
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if util.IsTestMode() {
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return true, nil
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}
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actual := &appsv1.Deployment{}
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exists, err := GetNamespacedObject(deployContext, deploymentSpec.ObjectMeta.Name, actual)
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if !exists || err != nil {
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return false, err
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}
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if actual.Spec.Strategy.Type == appsv1.RollingUpdateDeploymentStrategyType && actual.Status.Replicas > 1 {
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logrus.Infof("Deployment %s is in the rolling update state.", deploymentSpec.Name)
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}
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provisioned := actual.Status.AvailableReplicas == 1 && actual.Status.Replicas == 1
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return provisioned, nil
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}
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// MountSecrets mounts secrets into a container as a file or as environment variable.
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// Secrets are selected by the following labels:
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// - app.kubernetes.io/part-of=che.eclipse.org
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// - app.kubernetes.io/component=<DEPLOYMENT-NAME>-secret
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func MountSecrets(specDeployment *appsv1.Deployment, deployContext *DeployContext) error {
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secrets := &corev1.SecretList{}
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kubernetesPartOfLabelSelectorRequirement, _ := labels.NewRequirement(KubernetesPartOfLabelKey, selection.Equals, []string{CheEclipseOrg})
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kubernetesComponentLabelSelectorRequirement, _ := labels.NewRequirement(KubernetesComponentLabelKey, selection.Equals, []string{specDeployment.Name + "-secret"})
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listOptions := &client.ListOptions{
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LabelSelector: labels.NewSelector().Add(*kubernetesPartOfLabelSelectorRequirement).Add(*kubernetesComponentLabelSelectorRequirement),
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}
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if err := deployContext.ClusterAPI.Client.List(context.TODO(), secrets, listOptions); err != nil {
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return err
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}
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// sort secrets by name first to have the same order every time
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sort.Slice(secrets.Items, func(i, j int) bool {
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return strings.Compare(secrets.Items[i].Name, secrets.Items[j].Name) < 0
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})
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container := &specDeployment.Spec.Template.Spec.Containers[0]
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for _, secretObj := range secrets.Items {
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switch secretObj.Annotations[CheEclipseOrgMountAs] {
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case "file":
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voluseSource := corev1.VolumeSource{
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Secret: &corev1.SecretVolumeSource{
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SecretName: secretObj.Name,
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},
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}
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volume := corev1.Volume{
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Name: secretObj.Name,
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VolumeSource: voluseSource,
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}
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volumeMount := corev1.VolumeMount{
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Name: secretObj.Name,
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MountPath: secretObj.Annotations[CheEclipseOrgMountPath],
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}
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specDeployment.Spec.Template.Spec.Volumes = append(specDeployment.Spec.Template.Spec.Volumes, volume)
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container.VolumeMounts = append(container.VolumeMounts, volumeMount)
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case "env":
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secret := &corev1.Secret{}
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exists, err := GetNamespacedObject(deployContext, secretObj.Name, secret)
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if err != nil {
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return err
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} else if !exists {
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return fmt.Errorf("Secret '%s' not found", secretObj.Name)
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}
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// grab all keys and sort first to have the same order every time
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keys := make([]string, 0)
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for k := range secret.Data {
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keys = append(keys, k)
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}
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sort.Slice(keys, func(i, j int) bool {
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return strings.Compare(keys[i], keys[j]) < 0
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})
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for _, key := range keys {
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var envName string
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// check if evn name defined explicitly
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envNameAnnotation := CheEclipseOrg + "/" + key + "_env-name"
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envName, envNameExists := secretObj.Annotations[envNameAnnotation]
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if !envNameExists {
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// check if there is only one env name to mount
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envName, envNameExists = secretObj.Annotations[CheEclipseOrgEnvName]
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if len(secret.Data) > 1 {
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return fmt.Errorf("There are more than one environment variable to mount. Use annotation '%s' to specify a name", envNameAnnotation)
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} else if !envNameExists {
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return fmt.Errorf("Environment name to mount secret key not found. Use annotation '%s' to specify a name", CheEclipseOrgEnvName)
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}
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}
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env := corev1.EnvVar{
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Name: envName,
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ValueFrom: &corev1.EnvVarSource{
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SecretKeyRef: &corev1.SecretKeySelector{
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Key: key,
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LocalObjectReference: corev1.LocalObjectReference{
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Name: secretObj.Name,
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},
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},
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},
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}
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container.Env = append(container.Env, env)
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}
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}
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}
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return nil
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}
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// MountConfigMaps mounts configmaps into a container as a file or as environment variable.
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// Configmaps are selected by the following labels:
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// - app.kubernetes.io/part-of=che.eclipse.org
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// - app.kubernetes.io/component=<DEPLOYMENT-NAME>-configmap
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func MountConfigMaps(specDeployment *appsv1.Deployment, deployContext *DeployContext) error {
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configmaps := &corev1.ConfigMapList{}
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kubernetesPartOfLabelSelectorRequirement, _ := labels.NewRequirement(KubernetesPartOfLabelKey, selection.Equals, []string{CheEclipseOrg})
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kubernetesComponentLabelSelectorRequirement, _ := labels.NewRequirement(KubernetesComponentLabelKey, selection.Equals, []string{specDeployment.Name + "-configmap"})
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listOptions := &client.ListOptions{
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LabelSelector: labels.NewSelector().Add(*kubernetesPartOfLabelSelectorRequirement).Add(*kubernetesComponentLabelSelectorRequirement),
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}
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if err := deployContext.ClusterAPI.Client.List(context.TODO(), configmaps, listOptions); err != nil {
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return err
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}
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// sort configmaps by name first to have the same order every time
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sort.Slice(configmaps.Items, func(i, j int) bool {
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return strings.Compare(configmaps.Items[i].Name, configmaps.Items[j].Name) < 0
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})
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container := &specDeployment.Spec.Template.Spec.Containers[0]
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for _, configMapObj := range configmaps.Items {
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switch configMapObj.Annotations[CheEclipseOrgMountAs] {
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case "file":
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voluseSource := corev1.VolumeSource{
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ConfigMap: &corev1.ConfigMapVolumeSource{
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LocalObjectReference: corev1.LocalObjectReference{
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Name: configMapObj.Name,
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},
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},
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}
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volume := corev1.Volume{
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Name: configMapObj.Name,
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VolumeSource: voluseSource,
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}
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volumeMount := corev1.VolumeMount{
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Name: configMapObj.Name,
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MountPath: configMapObj.Annotations[CheEclipseOrgMountPath],
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}
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specDeployment.Spec.Template.Spec.Volumes = append(specDeployment.Spec.Template.Spec.Volumes, volume)
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container.VolumeMounts = append(container.VolumeMounts, volumeMount)
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case "env":
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configmap := &corev1.ConfigMap{}
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exists, err := GetNamespacedObject(deployContext, configMapObj.Name, configmap)
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if err != nil {
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return err
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} else if !exists {
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return fmt.Errorf("ConfigMap '%s' not found", configMapObj.Name)
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}
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// grab all keys and sort first to have the same order every time
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keys := make([]string, 0)
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for k := range configmap.Data {
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keys = append(keys, k)
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}
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sort.Slice(keys, func(i, j int) bool {
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return strings.Compare(keys[i], keys[j]) < 0
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})
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for _, key := range keys {
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var envName string
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// check if evn name defined explicitly
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envNameAnnotation := CheEclipseOrg + "/" + key + "_env-name"
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envName, envNameExists := configMapObj.Annotations[envNameAnnotation]
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if !envNameExists {
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// check if there is only one env name to mount
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envName, envNameExists = configMapObj.Annotations[CheEclipseOrgEnvName]
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if len(configmap.Data) > 1 {
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return fmt.Errorf("There are more than one environment variable to mount. Use annotation '%s' to specify a name", envNameAnnotation)
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} else if !envNameExists {
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return fmt.Errorf("Environment name to mount configmap key not found. Use annotation '%s' to specify a name", CheEclipseOrgEnvName)
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}
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}
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env := corev1.EnvVar{
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Name: envName,
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ValueFrom: &corev1.EnvVarSource{
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ConfigMapKeyRef: &corev1.ConfigMapKeySelector{
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Key: key,
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LocalObjectReference: corev1.LocalObjectReference{
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Name: configMapObj.Name,
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},
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},
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},
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}
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container.Env = append(container.Env, env)
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}
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}
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}
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return nil
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}
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